Question
A net force of 5000.0 N accelerates a car from rest to 93.3 km/h (meter per second) in 4.1s (a)what is the mass of the car? (b) What is the weight of the car?
Answers
F=MA----(1)
where F=force=5000N
M=mass of car
A=acceleration
1st)calculate acceleration.
A=speed/time-------(2)
(dont forget to convert speed into m/s)
2nd) replace A in (1), and solve for M :)
where F=force=5000N
M=mass of car
A=acceleration
1st)calculate acceleration.
A=speed/time-------(2)
(dont forget to convert speed into m/s)
2nd) replace A in (1), and solve for M :)
a. V = 93.3km/h = 93,300m/3600s = 25.92 m/s
a=(V-Vo)/t = (25.92-0)/4.1 = 6.32 m/s^2.
m = F/a = 5000/6.32 = 791.1 kg.
b. m*g = 791.1kg * 9.8N/kg = 7753 N. =
Wt. of car.
a=(V-Vo)/t = (25.92-0)/4.1 = 6.32 m/s^2.
m = F/a = 5000/6.32 = 791.1 kg.
b. m*g = 791.1kg * 9.8N/kg = 7753 N. =
Wt. of car.
Related Questions
a 1.10 x 10 cubed kg car accelerates from rest for a time period of 5.0 sec. The magnitude of the ac...
A body pulled by a constant force accelerates from 10 cm/s to 35 cm/s in 3.5 s. A second force accel...
A mass pulled by a constant force accelerates from 10 cm/s to 40 cm/s in 5.5 s. A second force accel...
A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 ×...